You know, if Dave were to change his mind on the whole dream thing and decided to use it in the next book in the opening pages, it would be awesome to see Mace have a nightmare about what was to come. Possibly a nightmare induced by the spirit as a warning that if he does not succeed or if he does not follow the path laid out for him, he and the entire Dreamworld would burn at the hands of the Nightmares.

Seeing that massive explosion in V3 during the Nabonidus and Void battle, I wouldn't be surprised if Void can just vaporize all of Anduruna with one energy attack. Can you imagine the Sabbaton Towers, hundreds of years of construction, inhabited by possibly millions, blown away in the blink of an eye? That would be one hell of a nightmare.

Just to be sure, Anduruna is 440 miles wide, right? If that's true, then it would take about at least the shear energy of the Tsar Bomba to wipe the city off the map, maybe even the farm and mountain side as well.